Abstract
Tie lines for (water + ethanol + trichloromethane) have been determined in the range 0.1 to 200 MPa at 298.15 K. The binodal curves obtained are little affected by pressure, while the tie lines vary significantly with pressure as the mole fraction of ethanol increases. Distribution curves of ethanol deviate considerably towards the organic phase and shift to the direction of enhancing the solubility of ethanol in the aqueous phase with increasing pressure. The distribution coefficients D 2 of ethanol are much less than those for (water + ethanol + n-hexae) and decrease gradually with the mole fraction of ethanol in the organic phase, depending on pressure.
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